Alnus sinuata (Sitka Alder)

Short Overview Alnus sinuata (Sitka Alder) is a large deciduous shrub or small tree native to northwestern North America, often forming dense thickets in moist mountain environments. It is commonly found along streams and disturbed slopes.

Key Characteristics

Plant type: Deciduous shrub or small tree (Alnus sinuata)

Foliage color: Bright green leaves turning yellow in fall

Flower color: Inconspicuous catkins

Bloom time: Early spring

Foliage: Rounded, coarsely toothed leaves

Growth habit: Multi-stemmed, spreading thicket-forming shrub

Mature size: Typically 3–10 m (10–33 ft) tall

General Growing Notes

Light: Sun to partial shade

Water: Prefers moist soils

Soil: Tolerates poor and disturbed soils

Care considerations: May spread by suckers in suitable conditions

Note: Size and density vary depending on moisture availability and site exposure.